Enzymes: (choose two correct options)
a) are consumed in the reaction they catalyze
b) reduce the overall change in Gibbs free energy of a reaction
c) increase the equilibrium constant (Keq) of a reaction to favor product formation
d) lower the transition state energy of a reaction
e) decrease the entropy of the transition state relative to the uncatalyzed reaction.
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Enzymes: (choose two correct options) a) are consumed in the reaction they catalyze b) reduce the...
Enzymes are important molecules in biochemistry that catalyze reactions. The energy diagram illustrates the difference between a catalyzed reaction and an uncatalyzed reaction. Label the energy diagram. Answer Bank AG for reaction activation energy catalyzed reaction reactants (substrate) free energy uncatalyzed reaction reaction progress products transition state What ways do enzymatic catalysts increase the rates of reactions? They shift the reaction equilibrium toward the products. They lower the activation energy of the reaction They decrease the free energy of the...
How do enzymes catalyze reactions? A) Enzymes bind with and change the conformation of substrates. B) Enzymes change the free energy of the reactants. C) Enzymes increase the activation energy of a reaction. D) Enzymes carry out a reaction without needing reactants. E) Enzymes are denatured by a reaction to catalyze it.
Question 4 Enzymes... ... lower the transition state energy of the uncatalyzed reaction. ... create energy to make reactions favorable. 1 ...slow reaction rates to maintain a steady state, thus avoiding sudden changes. ...bind most strongly to reactants in order to allow reaction. ... accelerate the attainment of equilibrium. Question 5
Identify correct statements pertaining to reaction energies. Group of answer choices The rate of a reaction depends on the energy change between reactants and products. If Keq < 1, the equilibrium will favor the reactants. If ∆G° < 0, Keq will be greater than 1. The reaction step with the highest energy transition state is called the rate determining step.
BIOCHEMISTRY please answers the both questions Q1: Which of the following statements about enzymes are true? (Check all that apply) A) Enzymes affect the activation energy of the reaction. b) Enzymes affect the equilibrium position of a chemical reaction. c) Enzymes affect the Gibbs Free Energy change of a chemical reaction. d) Enzymes decrease the time needed for a reaction to reach equilibrium. Q2: What best describes the nature of the active site. a) It is a rigid pocket that...
Choose the correct reaction coordinate diagram for a two-step reaction in which the first step is endergonic, the second step is exergonic, and the overall reaction is endergonic. Pay attention to the reactants, products, intermediates, and transition states A reactants) B = first transition state C = intermediate D = second transition state E =product(s) Free energy Progress of the action A = reactant(s) B = intermediate C = first transition state D = second transition state E = product(s)...
Consider two related reactions with the following Gibbs free energy profiles. In Reaction (A), the reactant has four energetically similar conformers, while in Reaction (B) there is only 1 predominant reactant conformer. In each case, the lowest energy reactant (R) and product (P) conformers are indicated by a red circle. Which of the following statement is true about the equilibrium constants [P]/[R] for the two reactions?a. Reaction A would have a larger equilibrium constant because the reactant state is characterised by...
Part A Choose the correct reaction coordinate diagram for a two-step reaction in which the first episodergonic the second step is and transition states ergonic and the overall reaction is ondergoni Paytention to the reacts product e s B C D reactant) intermediate first transition state econd transition state products) E Progress of the reaction A B C reactant) fin i tion state intermediate B C Free energy intermediate first transition state De second transition state E-products) Progress of the...
Indicate whether each of the following statements about enzymes is true or false. (Q12- 12. To be effective, they must be present at the same concentration as their substrate A. True B. False 13. They increase the equilibrium constant for the reaction, thus favoring product format A. True B. False 14. They increase the rate at which substrate is converted to product A. True B. False 15. They ensure that all substrate is converted to product. A. True B. False...
2. a) The forward rate constant for an elementary solution-phase reaction is 100 sl, and the reverse rate constant is 0.1 M's!. What is the standard Gibbs free energy change, AG", for this reaction? The temperature is 300 K. b) For the same reaction, the free energy of activation, AG , for the forward reaction is 50 kJ/mole. What is the activation free energy, AG,, for the reverse reaction? c) If the solvent is changed to one that interacts with...